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Finding the Fourth Proportional to 130,305.60, 179,802.60 and 72,941.94

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Solution

The fourth proportional to 130,305.60, 179,802.60 and 72,941.94 is: 100,649.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,305.60 : 179,802.60 = 72,941.94 : x
  2. Step 2: Convert to fraction form
    130,305.60/179,802.60 = 72,941.94/x
  3. Step 3: Cross multiply
    130,305.60x = 179,802.60 × 72,941.94
  4. Step 4: Simplify right side
    130,305.60x = 13,115,150,461.04
  5. Step 5: Solve for x
    x = 13,115,150,461.04/130,305.60
  6. Step 6: Final answer
    x = 100,649.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.